DE124403C

DE124403C -

Info

Publication number: DE124403C
Application number: DE1899124403D
Authority: DE
Priority date: 1899-08-19
Filing date: 1899-08-19
Publication date: 1901-10-31

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

Bei solchen Filtern, welche für gashaltige Flüssigkeiten bestimmt sind und unter Druck arbeiten, pflegt man, falls die Filterschichten in das Filtergehäuse unmittelbar eingesetzt sind, sowohl die zwischen je zwei Filterschichten entstehende Kammer für die filtrirte Flüssigkeit, als auch die zwischen zwei anderen Filterschichten entstehende Kammer für die unfiltrirte Flüssigkeit, getrennt zu entlüften, indem die sämmtlichen Kammern für die unfiltrirte Flüssigkeit durch Kanäle sowohl mit einem gemeinschaftlichen Entlüftungskanal als auch mit einem gemeinschaftlichen Zuleitungskanal in Verbindung stehen, während die sämmtlichen Filtratkammern wieder mit einein anderen gemeinschaftlichen EntlUftungskanal und einem besonderen Abflufskanal verbunden sind. Sind aber die Filterschichten nicht in /das Filtergehäuse unmittelbar eingesetzt, sondern in besonderen herausnehmbaren Filterrahmen gebettet, dann wird auf jedem Filterrahmen ein sogen. Entlüftungsventil angeordnet, welches die Luft oder die Gase aus der zwischen den beiden Filterschichten befindlichen Kammer nach aufsen treten läfst, umgekehrt aber das Eintreten von Luft oder Flüssigkeit von aufsen in die Kammer verhütet, während die sämmtlichen Filterrahmen durch hohle Zapfen auf einen gemeinschaftlichen Abflufskanal aufgesetzt sind. Weil aber diese Filterrahmen im Filtergehäuse angeordnet sind, so findet die Entlüftung der zwischen je zwei Filterschichten befindlichen Kammer zunächst in das Gehäuseinnere statt und dann erst von hier nach aufsen.With such filters, which are intended for gaseous liquids and under pressure work, care is taken if the filter sheets are inserted directly into the filter housing, both the chamber for the filtered liquid, which is created between each two filter layers, as well as the chamber for the unfiltered one, which arises between two other filter layers Fluid, to be vented separately, in all of the chambers for the unfiltered fluid through channels with both a common vent channel and a common one Supply channel are in communication, while all the filtrate chambers again with another common ventilation duct and a special one Drain are connected. But if the filter layers are not directly in / the filter housing used, but embedded in a special removable filter frame, then a so-called on each filter frame. Vent valve arranged, which the air or the gases from between the two filter layers the chamber located outside, but vice versa the entry of Air or liquid is prevented from entering the chamber from outside, while the entire filter frame are placed on a common drainage channel through hollow pegs. But because this Filter frames are arranged in the filter housing, so the ventilation takes place between two Filter layers located first in the interior of the housing and only then from the chamber here to the outside.

Die erstere Gattung der hier angeführten Filter bietet den Vortheil, dafs die für die unfiltrirte Flüssigkeit bestimmten Kammern von den Filtratkammern getrennt entlüftet werden können, während dies bei der zweiten Gattung der Filter nicht der Fall ist. Dieser Umstand stellt einen Nachtheil der zweiten Filtergattung dar, denn man ist nicht im Stande, die auf den Filterrahmen befindlichen Ventile von aufsen jederzeit zu controliren, und es kann daher der Fall eintreten, dafs ein Ventil seinen Dienst versagt und eine Verbindung zwischen der unfiltrirten und filtrirten Flüssigkeit herstellt, was die Unterbrechung des Filtervorganges zur Nothwendigkeit machen kann, abgesehen davon, dafs das Filtrat wieder verunreinigt wird. Andererseits sind aber die Vortheile, welche die Anordnung der Filterschichten in besonderen Filterrahmen bietet, nicht zu verkennen, denn man kann die Filterkörper (Filterrahmen mit zwei Filterschichten) vorher vorbereiten und schnell das ganze Filter zusammenstellen. Aufserdem ist jede bei diesem Filter im Filterkörper befindliche Filtratkammer gegen das Filterinnere sicher abgedichtet.The first class of filters listed here offers the advantage that those for the unfiltered Liquid certain chambers can be vented separately from the filtrate chambers, while this is the case with the second type the filter is not the case. This fact is a disadvantage of the second type of filter because you are not able to remove the valves on the filter frame from to control it at any time, and it may therefore happen that there is a valve Service fails and a connection is established between the unfiltered and filtered liquid, apart from what can make the interruption of the filtering process necessary of the fact that the filtrate is contaminated again. On the other hand, however, are the advantages of the arrangement of the filter layers in special filter frame offers not to be mistaken, because you can see the filter body (Filter frame with two filter layers) prepare beforehand and quickly the whole filter put together. In addition, each of the filtrate chambers in this filter is located in the filter body securely sealed against the inside of the filter.

Um nun die Vortheile dieser bekannten Filtergattungen verwerthen zu können, sollen gemäfs der vorliegenden Erfindung die die Filterschicht aufnehmenden Rahmen in dem Filtergehäuse derart angeordnet werden, dafs ihre Kammer getrennt von dem Filtergehäuse entlüftet werden kann.In order to be able to utilize the advantages of these known types of filter, should According to the present invention, the frame receiving the filter layer in the Filter housing are arranged in such a way that their chamber is separated from the filter housing can be vented.

Zwar sind solche Filter, bei welchen die Filterkörper oben durch hohle Zapfen mit einem von dem Filterinnern getrennten Kanal dicht verbunden sind, z. B. durch die englische Patentschrift 17942 vom Jahre 1895 bekannt, doch besitzen diese Filter wieder den Nach-It is true that there are filters in which the filter body has hollow pegs at the top are tightly connected to a channel separate from the filter interior, e.g. B. by the English Patent 17942 from 1895 known, but these filters again have the following

Claims

partly that the chamber located in the filter body has no drainage channel at its lower end owns; This means that this chamber remains filled with liquid after the filtration has taken place, which means, especially with large filters, great losses. Finally, through FIG. 5 and 6 of the above patent a separate venting of the two groups of chambers, from which one group determined for the filtered, the other for the unfiltered liquid has become known, but this device has the disadvantage that of the filtrate chambers each one is provided with a vent cock and around the whole To be able to ventilate the filtrate chambers, each tap has to be opened separately.

In order to be able to solve the problem posed by the present invention, according to Fig. Ι and 2 of the accompanying drawing, in which such a filter in two perpendicular Sections is shown, the following facility is made:

A filter with a square filter frame is selected as an exemplary embodiment, although possibly the filter frame can also have a circular or other shape, which the filter housing is then also correspondingly will connect.

The filter housing consists of the subpart α and the upper part b. The lower housing part is provided with a common drainage channel c into which the drainage pipe d of each filter frame e opens in a known manner. Two or more filter layers f are arranged in the filter frame, so that the filtrate chamber g connected to the drain pipe d is created. The upper housing part b is provided with a common ventilation duct h and the upper part of each filter frame carries a pipe socket z which is connected to the chamber g and opens into the ventilation duct h. The ventilation channel h is, however, sealed off from the inside of the housing in the usual way by an elastic ring k , and a viewing lantern m can be placed on the same, as usual , while a second viewing lantern η , which is only connected to the interior of the housing, is used for venting the Housing interior is determined.

All of the chambers g are connected to the drainage channel on the one hand, and to the ventilation channel h on the other, and the gases and air collect in the latter, so that the chambers g are vented independently of the filter housing, but also at the same time to the end can be emptied. However, because the connection between the ventilation channel and chamber g through the elastic ring k is permanent, leaks cannot occur and operation is therefore much safer.

But you can also arrange the ventilation duct h independently of the upper part b and place it on the pin i of the filter frame e , as shown in FIGS. After this has happened, the upper housing part b is first placed on the lower housing part. The channel h can have a connecting pin r on its upper side, through which it is tightly connected to the channel of the viewing lantern m.

This arrangement therefore provides the advantages of the filters mentioned at the beginning united without their disadvantages appearing.

Godfather ν τ claim:
Liquid filter, the filter body of which, consisting of a frame provided with replaceable filter layers, is placed in a known manner in a closed filter housing on a common drainage channel for the purpose of complete emptying of the filtrate chamber, characterized in that each filter body is connected to a common ventilation channel at its upper end by a hollow pin i h is connected, so that the venting of the filtrate chambers g can be carried out independently of the venting of the filter housing.

1 sheet of drawings.